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Home My WebLink AboutNC0077143_Inspection_20220325DocuSign Envelope ID: DAE2D4CA-0B08-4446-8C3E-B8F8DA97059D ROY COOPER Governor ELIZABETH S. BISER Secretary RICHARD E. ROGERS, JR. Director Lisa D Smith -Perri West Carteret Water Corporation Inc 4102 NC Hwy 24 Newport, NC 28570-0849 NORTH CAROLINA Environmental Quality March 25, 2022 SUBJECT: Compliance Inspection Report West Carteret Water Corp WTP NPDES WW Permit No. NC0077143 Carteret County Dear Permittee: The North Carolina Division of Water Resources conducted an inspection of the West Carteret Water Corp WTP on 3/18/2022. This inspection was conducted to verify that the facility is operating in compliance with the conditions and limitations specified in NPDES WW Permit No. NC0077143. The findings and comments noted during this inspection are provided in the enclosed copy of the inspection report entitled "Compliance Inspection Report". Please respond in writing to this office within 30 calendar days of your receipt of this letter with proof of annual calibration of the effluent flow meters as required by Part II, Section D.3. of the existing permit. If you should have any questions, please do not hesitate to contact Bryan Lievre with the Water Quality Regional Operations Section in the Wilmington Regional Office at 910-796-7215 or via email at bryan.lievre@ncdenr.gov. ATTACHMENTS Cc: Laserfiche E NORTH CAROI Sincerely, DocuSigned by: vvb tits, SaJiukti5—Lit4 �E3ABA14AC7DC434... Morella Sanchez -King, Regional Supervisor Water Quality Regional Operations Section Wilmington Regional Office Division of Water Resources, NCDEQ North Carolina Department of Environmental Quality I Division of Water Resources Wilmington Regional Office 1127 Cardinal Drive Extension I Wilmington, North Carolina 28405 910.796,7215 DocuSign Envelope ID: DAE2D4CA-0B08-4446-8C3E-B8F8DA97059D United States Environmental Protection Agency EPA Washington, D.C. 20460 Water Compliance Inspection Report Form Approved. OMB No. 2040-0057 Approval expires 8-31-98 Section A: National Data System Coding (i.e., PCS) Transaction Code 1 IN I 2 IL 21IIIIII NPDES yr/mo/day Inspection I 3 I NC0077143 111 121 22/03/18 117 Type 1810I IIIIIIIIIII Inspector Fac Type 19I S I 2011 IIIIIIIIIII IIIIIII I IIIIII P6 Inspection Work Days Facility Self -Monitoring Evaluation Rating 671 I 70I I 711 B1 QA Reserved 1 72 I N I 73I 1 74 71 I I I I I I I I 180 Section B: Facility Data Name and Location of Facility Inspected (For Industrial Users discharging to POTW, also include POTW name and NPDES Dermit Number) West Carteret Water Corp WTP 4102 NC Hwy 24 Newport NC 28570 Entry Time/Date 10:OOAM 22/03/18 Permit Effective Date 17/11/01 Exit Time/Date 12:30PM 22/03/18 Permit Expiration Date 22/07/31 Name(s) of Onsite Representative(s)/Titles(s)/Phone and Fax Number(s) /// Harold Bryan Wilson/ORC/252-393-1515/ Other Facility Data Name, Address of Responsible Official/Title/Phone and Fax Number Contacted Lisa D Smith-Perri,4102 NC Hwy 24 Newport NC 285700849/General Manager/252-393-1515/2523931540 No Section C: Areas Evaluated During Inspection (Check only those areas evaluated) Permit Flow Measurement Operations & Maintenar Records/Reports Self -Monitoring Progran Sludge Handling DispoFacility Site Review Effluent/Receiving Wate Laboratory Section D: Summary of Finding/Comments (Attach additional sheets of narrative and checklists as necessary) (See attachment summary) Name(s) and Signature(s) Bryan Lievre of Inspector(s) Agency/Office/Phone and Fax Numbers Date 1- DocuSigned by: DWR/WIRO WQ/910-796-7215/ 3/25/2022 3,2r2ccti..4iPN2Pi 74249ABED37443E... Signature of Management Q A Reviewer Agency/Office/Phone Morelia Sanchez -King DWR/WIRO WO/910 796 7218/�b� and Fax Numbers Date DocuSignedby:1-'',. ^ 3/25/2022 S—�Clbt EPA Form 3560-3 (Rev 9-94) Previous editions are obsolete. E3ABA14AC7DC434... Page# 1 DocuSign Envelope ID: DAE2D4CA-0B08-4446-8C3E-B8F8DA97059D 3I NPDES yr/mo/day NC0077143 111 121 22/0 3/ 18 I17 Inspection Type 18LI (Cont.) 1 Section D: Summary of Finding/Comments (Attach additional sheets of narrative and checklists as necessary) A compliance inspection of the West Carteret Water Treatment Plant (WTP) was performed on March 18, 2022. The facility is located at 4102 NC Highway 24, Newport, NC 28570-0849. The purpose of the inspection was to verify that the facility is operating in compliance with the conditions and limitations specified within Permit NC0077143. (Harold) Bryan Wilson (ORC #990834) and Lisa Guarino (BORC #998885) were present during the inspection. The current permit provides for the discharge of backwash water from the WTP filters. At the time the current permit was written, the system had 6 high -capacity production wells with a total design flow of 2.0 MGD and intermittent discharges of 0.083 MGD of filter backwash. The system currently has 9 high -capacity production wells (although only 8 are being used) and the average daily discharge backwash rate was 0.106 MGD for calendar year 2021. The effluent from the WTP consists of backwash water from three separate filter systems. The filter systems include: - Four (4) greensand filters, set up in parallel, for iron removal with potassium permanganate injection for regeneration (although injection is inactive due to low iron content of raw water). The greensand filter backwash is discharged into twelve drying beds (50' by 20', each), where the solids are filtered through a sand bed and liquid collects in a pipe network and drains to a wet well. - Eight (8) ion exchange filters, set up in parallel, for water softening, with brine solution injection for regeneration. The water softening ion exchange filter backwash water is discharged into a settling lagoon (measuring 52' by 52'), where it gravity drains through porous media and filter material and collects in piping which drains into a wet well. It should be noted that the settling lagoon is currently inactive, as indicated on the current permit, based on a request from the system, dated 2/24/2005, and approved by WiRO in correspondence, dated 3/8/2005. - Five (5) ion exchange filters, set up in parallel, for color removal (with different media than the softeners), with brine solution injection for regeneration. The color removal ion exchange filter backwash water is discharged into a settling lagoon (measuring 70' by 36'), where it gravity drains through a porous media and filter material and collects in piping which drains into a wet well. Ammonium hydroxide and chlorine gas are added for disinfection of the water and ortho-polyphosphate is also added for corrosion and anti -scale inhibitors, but both of these chemicals are added following filtration units. Potable (finished) water is used for some of the iron backwash water cycles as well as the brine solutions for all the ion exchange filters. The three wet wells are all equipped with duplex pump stations which send the effluent into a six inch diameter PVC line. The effluent line travels from the facility along the north side of NC Hwy 24 and discharges into Sikes Branch East Prong East Prong Sanders Creek (Stream Index 20-36-6-1). A review of monitoring records indicates that the system has not had any violations since the last inspection, which was performed on 8/25/2017. The operators were very knowledgeable of the facility and the facility seemed to be well maintained. The facility is generally compliant with the discharge Permit NC0077143, although calibration of flow meters is required. Please review the comment sections of the inspection report for more details. Page# 2 DocuSign Envelope ID: DAE2D4CA-0B08-4446-8C3E-B8F8DA97059D Permit: NC0077143 Inspection Date: 03/18/2022 Owner - Facility: West Carteret Water Corp WTP Inspection Type: Compliance Evaluation Permit Yes No NA NE (If the present permit expires in 6 months or less). Has the permittee submitted a new El • El ❑ application? Is the facility as described in the permit? El • El El # Are there any special conditions for the permit? • El El El Is access to the plant site restricted to the general public? • ❑ ❑ ❑ Is the inspector granted access to all areas for inspection? • El El El Comment: The existing permit was issued 9/19/2017, became effective 11/1/2017 and expires 7/31/2022. The system is currently working on submission of a renewal application. The outfall location depicted on the map attached to the permit as well as the coordinates within BIMS appear to be incorrect. The correct location is on the north side of NC Hwy 24, close to the middle of a entrance island for ST Wooten's concrete plant east of the WTP and located at 3939 NC Hwy 24, Newport, NC. Also, the WTP has added one softener (for a total of eight) and added another color filter unit (for a total of six). The permit requires sampling for chronic toxicity, in addition to other sampling requirements. Record Keeping Yes No NA NE Are records kept and maintained as required by the permit? • El ❑ ❑ Is all required information readily available, complete and current? • El El El Are all records maintained for 3 years (lab. reg. required 5 years)? • El El El Are analytical results consistent with data reported on DMRs? • El El El Is the chain -of -custody complete? • El ❑ ❑ Dates, times and location of sampling • Name of individual performing the sampling • Results of analysis and calibration • Dates of analysis ■ Name of person performing analyses ■ Transported COCs ■ Are DMRs complete: do they include all permit parameters? • El El El Has the facility submitted its annual compliance report to users and DWQ? El El • ❑ (If the facility is = or > 5 MGD permitted flow) Do they operate 24/7 with a certified El El El • operator on each shift? Is the ORC visitation log available and current? El ❑ ❑ • Is the ORC certified at grade equal to or higher than the facility classification? • El El El Is the backup operator certified at one grade less or greater than the facility • ❑ ❑ ❑ classification? Is a copy of the current NPDES permit available on site? • El El El Page# 3 DocuSign Envelope ID: DAE2D4CA-0B08-4446-8C3E-B8F8DA97059D Permit: NC0077143 Inspection Date: 03/18/2022 Owner - Facility: West Carteret Water Corp WTP Inspection Type: Compliance Evaluation Record Keeping Facility has copy of previous year's Annual Report on file for review? Yes No NA NE ❑ ❑ • ❑ Comment: All required data is being provided with EDMRs. Inspected field data for pH and total residual chlorine from 2/8/22 and 3/8/22 as well as Environment 1, Inc data and COCs for 2/8/22 and 2/22/22 sampling events. Sand Filters (Low rate) (If pumps are used) Is an audible and visible alarm Present and operational? Is the distribution box level and watertight? Is sand filter free of ponding? Is the sand filter effluent re -circulated at a valid ratio? # Is the sand filter surface free of algae or excessive vegetation? # Is the sand filter effluent re -circulated at a valid ratio? (Approximately 3 to 1) Yes No NA NE • ❑ ❑ ❑ • ❑ ❑ ❑ ❑ ❑ • ❑ ❑ ❑ • ❑ Comment: The sand filters receive backwash water from the iron filters. Flow is evenly distributed to each of the twelve (12) sand filter "drying beds." Flow seemed to have been evenly spread over the filters. A minor amount of vegatation was observed on top of some of the filters, but only in very limited areas. Although increased flow is typically obersved when the iron filters are backwashed (0.5 - 0.6 MGD, compared to average typical of 0.05 to 0.07 MGD), not much iron is present in the raw water and therefore, little sediment accumulates within the sand filters. Drying Beds Is there adequate drying bed space? Is the sludge distribution on drying beds appropriate? Are the drying beds free of vegetation? # Is the site free of dry sludge remaining in beds? Is the site free of stockpiled sludge? Is the filtrate from sludge drying beds returned to the front of the plant? # Is the sludge disposed of through county landfill? # Is the sludge land applied? (Vacuum filters) Is polymer mixing adequate? Yes No NA NE ❑ ❑ ❑ • • ❑ ❑ ❑ • ❑ ❑ ❑ • ❑ ❑ ❑ • ❑ ❑ ❑ ❑ • ❑ ❑ ❑ ❑ • ❑ Comment: The system has a 52' x 52' settling "lagoon" for the water softeners backwash water and a 70' x 36' settling "lagoon" for the color filters backwash water. No vegetation was observed on either of the lagoons. The settling lagoon for the softeners is inactive and liquid is sent to a wet well. The liquid from the lagoon for the color filters is drained into another wet well. Flow from both of the above wet wells combines with liquid from the Sand Filter wet well and then flows to the outfall. Pump Station - Effluent Yes No NA NE Page# 4 DocuSign Envelope ID: DAE2D4CA-0B08-4446-8C3E-B8F8DA97059D Permit: NC0077143 Inspection Date: 03/18/2022 Owner - Facility: West Carteret Water Corp WTP Inspection Type: Compliance Evaluation Pump Station - Effluent Yes No NA NE Is the pump wet well free of bypass lines or structures? • ❑ ❑ ❑ Are all pumps present? • ❑ ❑ ❑ Are all pumps operable? ❑ ❑ ❑ • Are float controls operable? • ❑ ❑ ❑ Is SCADA telemetry available and operational? • ❑ ❑ ❑ Is audible and visual alarm available and operational? • ❑ ❑ ❑ Comment: The wet well for the sand filters, softeners and color filters are all equipped with duplex pump stations and visual and audible alarms. Alarms functioned properly at all three locations after a high level float switch was raised at each location. Flow Measurement - Effluent # Is flow meter used for reporting? Is flow meter calibrated annually? Is the flow meter operational? (If units are separated) Does the chart recorder match the flow meter? Yes No NA NE ❑ • ❑ ❑ • ❑ ❑ ❑ Comment: The system previously had a single water meter on the main effluent line, however, the meter was often out of service or problematic due to the nature of the effluent water quality. The system utilizes the sum of four water meters for reporting purposes, whereas 1 flowmeter provides backwash flow from the iron filters, two flow meters provides results from the water softeners and one flow meter provides results from the color filters. All flow meters used for reporting purposes need to be calibrated annually per Part II, Section D.3. of the permit. Effluent Pipe Is right of way to the outfall properly maintained? Are the receiving water free of foam other than trace amounts and other debris? If effluent (diffuser pipes are required) are they operating properly? Yes No NA NE • ❑ ❑ ❑ Comment: The right of way appeared to have been recently maintained near the outfall location, presumably by NCDOT. Although no discharge was occuring during the inspection, the discharge location was free of excessive sediment, no stressed vegetation was observed and small fish or tadpoles were observed within the water. Effluent Sampling Is composite sampling flow proportional? Is sample collected below all treatment units? Is proper volume collected? Is the tubing clean? Yes No NA NE • ❑ ❑ ❑ ❑ ❑ • ❑ Page# 5 DocuSign Envelope ID: DAE2D4CA-0B08-4446-8C3E-B8F8DA97059D Permit: NC0077143 Inspection Date: 03/18/2022 Owner - Facility: West Carteret Water Corp WTP Inspection Type: Compliance Evaluation Effluent Sampling Yes No NA NE # Is proper temperature set for sample storage (kept at less than or equal to 6.0 • ❑ ❑ ❑ degrees Celsius)? Is the facility sampling performed as required by the permit (frequency, sampling type • El El El representative)? Comment: Per past instructions and guidance from the Wilmington Regional Office, system staff are preparing composite samples by using a manual sampling method from each of the separate discharges. System staff have a printed instruction form which also includes records of samples collected. Operations & Maintenance Yes No NA NE Is the plant generally clean with acceptable housekeeping? • ❑ ❑ ❑ Does the facility analyze process control parameters, for ex: MLSS, MCRT, Settleable • El ❑ ❑ Solids, pH, DO, Sludge Judge, and other that are applicable? Comment: West Carteret Water Corporation maintains certification #5579 for field sampling parameters including pH and total residual chlorine. All other analyses are sent to outside laboratories for anlayses. Page# 6